| 摘要 |
PURPOSE:To obtain highly reliable rotation of a motor by employing a serial absolute encoder as an encoder, parallel-converting an absolute signal and an incremental signal as rotation detection signals, and then inputting it to a controller. CONSTITUTION:After signals 4, 5 to be input to a serial/parallel converter 10 are parallel-converted, they are input to a controller 7 as an absolute signal 4 and an incremental signal 5 of a parallel state. The controller 7 inputs a control signal 8 to a motor driver 6 based on two types of the signals 4, 5. The driver 6 controls the motor 3 according to the signal 8. Accordingly, since the signal 8 is obtained based on the signals 5, 4, if any of the signals 4, 5 is abnormal, the signal 8 is output based on either the signal 4 or 5 by the comparison of the signals 4, 5. |
